src/build/libgnuregex/printchar.c

   1 /* Extended regular expression matching and search library,
   2    version 0.12.
   3    (Implements POSIX draft P10003.2/D11.2, except for
   4    internationalization features.)
   5
   6    Copyright (C) 1993 Free Software Foundation, Inc.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2, or (at your option)
  11    any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  21
  22 /* (this file was downloaded from
  23  * https://raw.githubusercontent.com/ge-ne/bibtool/master/regex-0.12/test/printchar.c ,
  24  * where no copyright header is included).
  25  */
  26 #ifdef DEBUG
  27
  28 void
  29 printchar (c)
  30      char c;
  31 {
  32   if (c < 040 || c >= 0177)
  33     {
  34       putchar ('\\');
  35       putchar (((c >> 6) & 3) + '0');
  36       putchar (((c >> 3) & 7) + '0');
  37       putchar ((c & 7) + '0');
  38     }
  39   else
  40     putchar (c);
  41 }
  42
  43 #endif